cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A204069 Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..2 introduced in row major order.

Table of values

n a(n)
1 8
2 329
3 45056
4 19934369
5 28864215128
6 137884925726873
7 2183735443548857744
8 115025778364437876962225
9 20195410108776255562409533352
10 11837286998861556208797264551862761

List of values

[8, 329, 45056, 19934369, 28864215128, 137884925726873, 2183735443548857744, 115025778364437876962225, 20195410108776255562409533352, 11837286998861556208797264551862761]